P0456 on Your 2024 Sorento: Warranty Covers It
Your 2024 Sorento (4th generation, MQ4) has triggered P0456—a very small EVAP leak. Whether you have the 2.5L MPI, 2.5L turbo, 1.6L turbo hybrid, or plug-in hybrid, the EVAP system is shared. Under Kia's warranty, zero cost.
Symptoms
- Check engine light on
- P0456 stored
- No performance or AWD issues
- All 3-row features normal
Causes
- Gas Cap Seal (High Likelihood): Loose. $0 warranty.
- Purge Control Solenoid Valve (High Likelihood): Component variance. $0 warranty.
- Canister Close Valve (Medium Likelihood): Vent control. $0 warranty.
- EVAP Connection (Medium Likelihood): Factory assembly. $0 warranty.
- Software Update (Low Likelihood): ECM calibration. $0 warranty.
What to Do
- Reseat gas cap
- Schedule warranty appointment
- Dealer fixes for free
Cost
- Under warranty: $0
- 5yr/60k through 2029
- Federal emissions through 2032
Can I Drive?
Yes. P0456 has zero impact on the Sorento's towing (5,000 lbs with 2.5T), AWD, hybrid, or any feature.
Warranty
Kia's 5yr/60k through 2029. 10yr/100k powertrain. Federal emissions 8yr/80k through 2032.